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Thank you grblades,<br />
<br />
I checked into my Sonicwall TZ150 routers and it does not look like they support QOS. &nbsp;The TZ170 does. &nbsp;Thanks for your input.
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I have a VPN setup between my two offices. &nbsp;Each office has a T1connection using the T1 for both phone and data. &nbsp;We have a VPN setup between the two sites with Sonicwall TZ150 routers. &nbsp;Each office has the NEC Aspire S IP phone systems which are interconnected through the VPN. &nbsp; We use the interconnection mostly for intercom communications between the offices. &nbsp;Also there is some data traffic between the offices for email and terminal services. &nbsp;We have about 8 users on one side and 5 users on the other.<br />
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Everything is set up and works good except once in a while when there is data traffic between the offices and you are talking on the intercom between offices the voice starts clipping and breaking up.<br />
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What can I do about that? &nbsp;I would like to set up my router to provide the bandwidth for voice over data but how do I do that? &nbsp;Do I want to set up two tunnels one for voice and one for data and limit the data side? Or is there something else I am missing?
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I have a VPN setup between my two offices.  Each office has a T1connection using the T1 for both phone and data.  We have a VPN setup between the two sites with Sonicwall TZ150 routers.  Each office has the NEC Aspire S IP phone systems which are interconnected through the VPN.   We use the interconnection mostly for intercom communications between the offices.  Also there is some data traffic between the offices for email and terminal services.  We have about 8 users on one side and 5 users on the other.

Everything is set up and works good except once in a while when there is data traffic between the offices and you are talking on the intercom between offices the voice starts clipping and breaking up.

What can I do about that?  I would like to set up my router to provide the bandwidth for voice over data but how do I do that?  Do I want to set up two tunnels one for voice and one for data and limit the data side? Or is there something else I am missing?

Thank you grblades,

I checked into my Sonicwall TZ150 routers and it does not look like they support QOS.  The TZ170 does.  Thanks for your input.

Sound Clipping sometimes on VOIP Connection between (2) VPN Routers

IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.

IP Telephony

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).